I went looking for Endgame in the shops today. Found a single copy in Waterstones, and had a surreptitious read, to decide whether I was being too judgmental. I read the first couple of pages of the chapter about Catherine.
It starts with a quotation about stones being content and boring and water being fabulously curious and exciting (paraphrasing). I mean, who could be the stone and who could be the water?
Next is another Year 6 adjectives and prepositions exercise, this time about summer and Indian Summer and September being just like Summer and summat else about heat and Summer and September.
He then goes on to talk about Kate's stone garden at RHS Wisley in, I think, 2019. So there we go, answered that stones and water conundrum. It describes Catherine doing a TV appearance with Mary Berry where she shows Mary her garden creation (which I remember watching at the time, and thinking Catherine came across as disarmingly normal, natural and sweet-natured).
Then we have the passage about Catherine's nerves over her Blue Peter appearance. The snide summary being, it was rather surprising that she was still nervous even after 8 years on the job, but she managed it, better late than never.
That was enough reading to know that I'm probably not being judgmental, and this book is aimed at those who would wrestle the microphone from the cold, dead paws of Shep The Dog for their 15 minutes of fame.